Roller for roller-skates.



PATENTED APR. 28, 1903.

L. M. RICHARDSON.

ROLLER FOR ROLLER SKATES. APPLICATION FILED MAY 7, 1902.

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SPECIFICATION forming part of Letters Patent No. 726,463, dated April28, 1903.

Application filed May 7. 1902. Serial No. 106,260. (No model.)

To all whom it may concern:

Be it known that I, LEVANT M. RICHARD- SON, a citizen of the UnitedStates, and a resident of Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements in Rollersfor Roller-Skates, of which the followingis a full, clear, and exactdescription.

My invention relates to rollers or casters which are particularlyadapted for use in connection with roller-skates; and its object is toprovide a simple, cheap, and durably-constructed roller possessing allthe advantages of a solid aluminium wheel, together with the cheapnessand lightness of a composition roller. This I accomplish by the meanshereinafter fully described and as particularly pointed out in theclaims.

In the drawings, Figure 1 is a side view of my invention drawn to anenlarged scale. Fig. 2 isa transverse central section of the same. Fig.3 is a side view of the aluminium rim of the wheel. Fig. 4 isatransverse central section of the same.

In the drawings, A represents the metal rim of my improved roller, whichis preferably made of aluminium. The outer surface or tread of this rimis cylindrical and has its end edges preferably beveled.Theinnercircumference of this rim is provided at its center of widthwith an inwardly-projecting circumferential head a, which at equalintervals apart are intersected with, say, four cross-bars b b b I).These cross bars preferably do not project farther inward than the innercircumference of said bead a, but extend laterally to either side of thesame to points about midway between said bead and the plane of the sideedges of the rim and preferably have their ends concaved or undercut.

The center of the roller comprises a suitable steel core 0, which in theroller shown in the drawings is concaved at each end to provideball-bearing cup and has its outer circumference made cylindrical withthe exception of a circumferential groove d of sufficient dimensionmidway its ends.

In making the roller the rim is placed concentric to the bearing, andthe space between the two is filled in with plastic composition D, whichwhen dried solidifies and hardens and makes a solid wheel fromcircumference to core. The bead a and crossbars b thoroughly andsecurely anchor the rim in the composition D, and the composition bysurrounding the core 0 and entering the circumferential grooved thereofretains said core in its proper place beyond possibility ofdisplacement. Either the head a or the cross-bars b may be dispensedwith; but I much prefer the use of both. The head a is designed toprevent lateral displacement of the relative positions of the rim andcomposition, and the cross-bars effectually prevent the remotepossibility of the rim creeping on the same. Auy means that would effectthis result would come within the scope of my invention.

What I claim as new is 1. A roller or caster comprising a metallic core,a metallic rim having a circumferential bead projecting from its innercircumference ends at intervals along its length, and a compositioninterposed between said core and rinr in which the said head andcross-bars are embedded.

2. A roller or caster comprising a metallic core having acircumferential groove in its outer circumference, a metallic rim havingits inner circumference provided at intervals with cross-bars the endsof which are con caved, and a composition interposed between said coreand rim, substantially as and for the purposes set forth.

3. A roller or caster comprising a metallic core having'acircumferential groove in its outer circumference, a metallic rim havinga circumferential bead projecting inward from its inner circumference, aplurality of crossbars extending outwardly from said bead and havingtheiredges beveled, and a composition interposed between said core andrim, substantially as and for the purposes set forth.

4. A roller or caster comprising a metallic core a metallic rim having acircumferential bead projecting from its inner circumference andprovided with cross-bars at intervals along its length, and acomposition interposed between said core and rim in which the bead andthe bars of the latter are embedded.

. 5. A roller or caster comprising a metallic ICO core having acircumferential groove in its outer circumference, a metallic rim havingto outer circumference a metallic rim having at its inner circumferenceprovided at intervals circumferential bead with cross-bars thereon withcross-bars, and a composition interposed projecting inward from itsinner circumferbetween said core and rim, substantially as 5 once, and acomposition interposed between and for the purpose set forth.

said core and rim, substantially as and for LEVANT M. RICHARDSON. thepurpose set forth. Witnesses:

6. A roller or caster comprising a metallic FRANK D. THOMASON, corehaving a circumferential groove in its M. FRIEL.

